Home / 103,604.41-155,406.63-68,535.86

Finding the Fourth Proportional to 103,604.41, 155,406.63 and 68,535.86

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Solution

The fourth proportional to 103,604.41, 155,406.63 and 68,535.86 is: 102,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,604.41 : 155,406.63 = 68,535.86 : x
  2. Step 2: Convert to fraction form
    103,604.41/155,406.63 = 68,535.86/x
  3. Step 3: Cross multiply
    103,604.41x = 155,406.63 × 68,535.86
  4. Step 4: Simplify right side
    103,604.41x = 10,650,927,036.75
  5. Step 5: Solve for x
    x = 10,650,927,036.75/103,604.41
  6. Step 6: Final answer
    x = 102,803.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.